最可能的病因为
A.调节性
B.非调节性
C.继发性
D.炎症
E.肿瘤
参考答案:A
That is a very good girl. Do you know _______ name?[ ]
A. his
B. her
C. its
D. it's
颌下间隙感染多由于()。
A.化脓性颌下腺炎
B.颌下淋巴结炎
C.颏下间隙感染所波及
D.淋巴结核
E.血源性感染